EP0866221B1 - Kraftstoffverteiler für einen Dieselmotor - Google Patents

Kraftstoffverteiler für einen Dieselmotor Download PDF

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Publication number
EP0866221B1
EP0866221B1 EP97121711A EP97121711A EP0866221B1 EP 0866221 B1 EP0866221 B1 EP 0866221B1 EP 97121711 A EP97121711 A EP 97121711A EP 97121711 A EP97121711 A EP 97121711A EP 0866221 B1 EP0866221 B1 EP 0866221B1
Authority
EP
European Patent Office
Prior art keywords
fuel distributor
subassembly according
fuel
pressure
connecting nipple
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97121711A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0866221A1 (de
Inventor
Dietrich Dr.-Ing. Domrös
Norbert Dipl.-Wirt.Ing. Faulhaber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poppe and Potthoff GmbH
Original Assignee
Poppe and Potthoff GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26034959&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0866221(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Poppe and Potthoff GmbH filed Critical Poppe and Potthoff GmbH
Publication of EP0866221A1 publication Critical patent/EP0866221A1/de
Application granted granted Critical
Publication of EP0866221B1 publication Critical patent/EP0866221B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips

Definitions

  • the invention relates to a fuel rail assembly according to the preamble of claim 1.
  • Newer injection systems for diesel fuel with which an improvement of the Efficiency of the diesel engine and a reduction in fuel consumption is achieved are designed to have an electronic control the ideal characteristic curve for the injection timing depending on the respective operating conditions Ignition pressure and fuel consumption can be optimized.
  • the operating pressures are around 1,600 bar compared to around 900 bar the previously common injection system.
  • the distribution routes are created by drilling, i.e. it is a longitudinal bore introduced into the cross holes through the connecting nipple flow out.
  • Another disadvantage of the known fuel rail is that it is a has relatively high weight.
  • a fuel rail assembly according to the preamble of the main claim is known from EP 0 751 336 A1.
  • the connecting nipple into a stepped insertion hole in the fuel rail inserted and along its outer circumference with the outer surface of the fuel rail welded.
  • Extends through the connection nipple a bore aligned with the through bore of the fuel rail. This bore ends in a widening at the free end of the connection nipple, into a swaging head formed at the end of a pressure line to be connected is pressed in with a union nut.
  • a peculiarity of the fuel distributor assembly described above is that that the insertion hole the material of the central fuel rail or Manifold weakens.
  • the pressure line is also connected in relatively large distance from the distributor, which makes the connection nipple is significantly burdened.
  • a fuel rail assembly is known in which the fuel distributor or the distributor pipe is enclosed by an outer pipe is in which a clamping body provided with receiving holes is received.
  • Union nuts can be screwed into the mounting holes at the ends of the pressure lines formed upsetting heads in contact with widenings press through holes in the fuel rail.
  • US-C-4 432 376 describes a fuel rail assembly in which the Connection nipple formed as ring parts surrounding the fuel distributor are, which have holes in the union nuts for pressing the Pressure lines can be screwed to the fuel rail, and if necessary are also welded to the fuel rail.
  • the invention has for its object to a fuel rail assembly create that is simple and inexpensive to manufacture, a low weight has and the high load demands especially modern diesel engines justice.
  • connection nipple With the insertion hole designed according to the invention as the through hole comprehensive ring bore will ensure a safe positioning of the reached into the insertion hole or pressed in connection nipple.
  • the fuel rail is weakened only a little.
  • the pressure line is directly connected to the wall of the fuel rail, so that the Connection nipple only absorbs the contact pressure.
  • the sub-claims 2 and 3 characterize two advantageous options Threaded connection nipple with which a pressure screw or Cap nut interacts.
  • the advantage is achieved that only a little Heat in a locally restricted area of the fuel rail and the Connection nipple is entered, the weld being dull and essentially between the end face of the connecting nipple and the fuel rail follows.
  • the strength of the fuel rail can be further increased be, whereby a weight-optimal design is possible.
  • one Ball calibration is possible, with a work hardening and smoothing of the inner wall he follows.
  • the mechanical processing (training of the insertion holes) resulting notch effect and a Rounding of edges in the transition area of the insertion holes with the inner wall achieved, which also has a reduction in the notch effect.
  • the claim 8 is directed to materials that can be used advantageously.
  • a material serve, for example, structural steels such as St 52 BK, tempered steels such as C 45 or alloy steels. Because of its toughness, stainless steel is in accordance with DIN 17455 advantageous.
  • the dependent claims 9 to 14 are advantageous seals of the axial end of the fuel rail directed.
  • the connecting nipples which are preferably designed as rotating parts, are advantageously pressed into the insertion holes of the fuel rail and then welded or soldered.
  • An AgCu solder is advantageously used as the solder used, which is soldered at a process temperature of about 750 ° C.
  • Induction welding has been found to be advantageous for welding.
  • Capacitor discharge welding is also advantageous only a little heat is introduced into the fuel rail, so that its Material properties remain practically unchanged.
  • a fuel rail assembly is shown that has a fuel rail 1, which consists of a drawn or rolled tube.
  • the interior of the fuel distributor 1 forms a pressure accumulator 2 in the Through holes 10 open, each with a pressure line 5 in connection stand.
  • connection nipple 3 press screws 4 are screwed through each Pressure line 5 is guided, which has a compression head 6 at the end, which in the assigned receptacle 7 protrudes.
  • the diameter of the through hole 10 corresponds approximately to the clear Diameter of the pressure line 5, so that practically this directly in the Pressure accumulator 2 opens.
  • the pressure screw 4 has on the fuel rail 1 opposite end a cuff provided with a key surface on, as can be clearly seen in FIG. 1.
  • connection nipple is 3rd provided with an external thread onto which a union nut 9 is screwed is.
  • FIG. 4 there is an end face of the distributor pipe 1 closed with a sealing piece 12, which on its side facing the pressure accumulator 2 Side is crowned and in a correspondingly adapted Recess of the fuel rail 1 lies.
  • the sealing piece 12 is sealing in the manifold 1 held.
  • the press nipple 13 is included provided with an internal thread 14.
  • FIGS. 5 and 6 show possibilities for the axial sealing of the pressure accumulator 2 shown.
  • FIG. 5 there is a ball 23 with a corresponding excess is pressed into the pipe end of the fuel distributor 1, whereby one caused by the oversize of the sealing ball 23 Form seat 21, which forms a sealing surface in the area of the sealing ball jacket results.
  • the sealing ball 23 can by caulking the wall of the fuel rail 1 in the contact area with the sealing ball 23 or by other suitable Measures are set so that a tight seal of the Pressure accumulator 2 also taking into account the high prevailing therein Pressures is guaranteed.
  • sealing ball 23 which is preferably a greater hardness than that Has material of the fuel distributor 1, by a threaded plug 25th pressed against the circumferential approach 24, so that by entering Deformation gives an annular sealing surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Joints With Pressure Members (AREA)
EP97121711A 1997-03-18 1997-12-10 Kraftstoffverteiler für einen Dieselmotor Expired - Lifetime EP0866221B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19711240 1997-03-18
DE19711240 1997-03-18
DE19744762A DE19744762A1 (de) 1997-03-18 1997-10-10 Einspritzeinrichtung für einen Dieselmotor
DE19744762 1997-10-10

Publications (2)

Publication Number Publication Date
EP0866221A1 EP0866221A1 (de) 1998-09-23
EP0866221B1 true EP0866221B1 (de) 2001-10-31

Family

ID=26034959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121711A Expired - Lifetime EP0866221B1 (de) 1997-03-18 1997-12-10 Kraftstoffverteiler für einen Dieselmotor

Country Status (4)

Country Link
EP (1) EP0866221B1 (enExample)
JP (1) JPH10259772A (enExample)
AT (1) ATE208009T1 (enExample)
DE (2) DE19744762A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007033738A2 (de) 2005-09-16 2007-03-29 Daimler Ag Kraftstoffverteiler
DE102008013575B3 (de) * 2008-03-11 2009-08-13 Poppe & Potthoff Gmbh Kraftstoffverteilerbaugruppe
DE102009051065B3 (de) * 2009-10-28 2011-01-20 Benteler Automobiltechnik Gmbh Kraftstoffverteiler

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DE19933256A1 (de) * 1999-07-15 2001-01-25 Bosch Gmbh Robert Anschlussstutzen und Gehäuse, insbesondere Kraftstoffhochdruckspeicher, mit vorgespannt angeschweißtem Anschlussstutzen für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen
JP2000234688A (ja) * 1999-02-17 2000-08-29 Usui Internatl Ind Co Ltd コモンレールの製造方法
DE19913793A1 (de) * 1999-03-26 2000-10-19 Daimler Chrysler Ag Verfahren zum Herstellen einer Hochdruckleitung
DE19923951A1 (de) * 1999-05-25 2000-11-30 Delphi Tech Inc Verteilerleiste für ein Kraftstoffeinspritzsystem
DE19933254A1 (de) 1999-07-15 2001-01-25 Bosch Gmbh Robert Anschlussstutzen und Gehäuse, insbesondere Kraftstoffhochdruckspeicher, mit vorgespannt angeschweißtem Anschlussstutzen für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen
DE19936533A1 (de) * 1999-08-03 2001-02-15 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19937444C1 (de) * 1999-08-07 2001-01-18 Winkelmann & Pannhoff Gmbh Vorrichtung zur Verteilung von Kraftstoff für Kraftstoffeinspritzanlagen von Verbrennungsmotoren
DE19942855A1 (de) * 1999-09-08 2001-03-22 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19945316A1 (de) * 1999-09-22 2001-04-05 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19945436C1 (de) * 1999-09-22 2001-01-18 Siemens Ag Einspritzanlage
DE19946611A1 (de) * 1999-09-29 2001-04-12 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19948341A1 (de) * 1999-10-07 2001-04-19 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19959105A1 (de) * 1999-12-08 2001-06-21 Bosch Gmbh Robert Anschlussstutzen und Gehäuse, insbesondere Kraftstoffhochdruckspeicher, mit vorgespannt angeschweißtem Anschlussstutzen für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen
US6463909B2 (en) * 2000-01-25 2002-10-15 Usui Kokusai Sangyo Kaisha Limited Common rail
US6736431B2 (en) 2000-03-06 2004-05-18 Robert Bosch Gmbh High-pressure fuel accumulator
DE10010944A1 (de) * 2000-03-06 2001-09-20 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE10027364A1 (de) 2000-06-02 2001-12-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Kantenbearbeitung in einem Kraftstoffhochdruckspeicher
DE10128715B4 (de) * 2001-05-04 2005-09-22 Mtu Friedrichshafen Gmbh Kraftstoffhochdruckleitung
DE10136157A1 (de) * 2001-05-04 2002-08-29 Mtu Friedrichshafen Gmbh Kraftstoffinjektor
WO2003016702A2 (de) 2001-08-17 2003-02-27 Siemens Aktiengesellschaft Aktor als antriebseinheit für einen injektor sowie verfahren zur herstellung des injektors
DE10143740B4 (de) * 2001-09-06 2005-07-21 Siemens Ag Druckleitungsanschluss
DE50213049D1 (de) * 2001-09-28 2009-01-08 Continental Automotive Gmbh Kraftstoffspeicher für eine Einspritzvorrichtung
EP1298313A3 (de) * 2001-10-01 2004-12-01 Siemens Aktiengesellschaft Kraftstoffspeicher für eine Kraftstoffeinspritzvorrichtung
DE10162203A1 (de) * 2001-12-18 2003-07-10 Bosch Gmbh Robert Festigkeitsoptimierter Hochdruckanschluss an Hochdrucksammelräumen
US6929288B2 (en) * 2001-12-20 2005-08-16 Usui Kokusai Sangyo Kaisha Limited Connecting structure of branch connector in fuel pressure accumulating container
DE10220339A1 (de) 2002-05-07 2003-11-27 Siemens Ag Kraftstoffverteilungsrohr für Kraftfahrzeug-Einspritzeinrichtungen, insbesondere für Common-Rail-Systeme
US6886537B2 (en) 2002-07-04 2005-05-03 Denso Corporation Accumulation type fuel injection system for engine
DE10239379B4 (de) * 2002-08-25 2005-02-03 Umformtechnik Bäuerle GmbH Verfahren zur Bearbeitung eines Werkstücks für einen Kraftstoffhochdruckspeicher und Werkstück zur Anwendung des Verfahrens
DE10247524B4 (de) * 2002-10-11 2004-08-12 Siemens Ag Kraftstoffverteiler
EP1426609A1 (de) * 2002-12-06 2004-06-09 Wärtsilä Schweiz AG Druckspeicher für ein Common Rail System
EP1426607A1 (de) * 2002-12-06 2004-06-09 Wärtsilä Schweiz AG Druckspeicher für ein Common Rail System
DE10304961B3 (de) * 2003-02-06 2004-08-19 Robert Bosch Gmbh Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers
DE10309311B4 (de) 2003-03-04 2005-01-05 Siemens Ag Kraftstoffhockdruckspeicher
JP4438450B2 (ja) 2003-04-07 2010-03-24 株式会社デンソー 配管継手装置およびその組付方法
DE10333721B4 (de) 2003-07-23 2005-07-07 Benteler Automobiltechnik Gmbh Kraftstoffverteilerleiste mit einem Anschlussstück
FR2859267B1 (fr) * 2003-08-29 2005-11-11 Renault Sa Agencement pour le raccordement de l'extremite inferieure d'un tuyau sur un embout
DE102004030394B3 (de) * 2004-06-23 2005-05-04 Benteler Automobiltechnik Gmbh Common-Rail
DE102004036871A1 (de) * 2004-07-29 2006-02-16 Deutz Ag Behälter
JP4069913B2 (ja) * 2004-09-10 2008-04-02 株式会社デンソー 蓄圧式燃料噴射システムに用いられる継手部材の接合方法および取付ステーの接合方法
ATE441779T1 (de) * 2005-07-08 2009-09-15 Fiat Ricerche Verbindungssystem von einem rohrfírmigen speicher für hochdruckkraftstoff
DE102005033157B4 (de) * 2005-07-13 2013-10-31 Benteler Automobiltechnik Gmbh Anschluss einer Leitung unter Einbringung einer Drossel an eine Kraftstoffverteilerleiste und Verfahren zur Herstellung eines solchen Anschlusses
JP4372064B2 (ja) * 2005-08-04 2009-11-25 新日本製鐵株式会社 自動車用高圧燃料噴射蓄圧分配器およびその製造方法
KR100937058B1 (ko) 2005-08-04 2010-01-15 신닛뽄세이테쯔 카부시키카이샤 자동차용 고압 연료 분사 축압 분배기 및 그 제조 방법
DE102007029096A1 (de) 2007-06-21 2008-12-24 Benteler Automobiltechnik Gmbh Kraftstoffverteiler
JP5090322B2 (ja) * 2008-12-04 2012-12-05 株式会社オティックス コモンレール
FR2952839B1 (fr) * 2009-11-26 2013-08-02 Intecom Sarl Procede d'assemblage etanche de pieces mecaniques mettant en oeuvre de facon particuliere les tres hautes pressions hydrauliques et permettant avantageusement la fabrication de rampes d'injection
CN102338007A (zh) * 2011-08-28 2012-02-01 中国兵器工业集团第七○研究所 一种高压共轨系统分油器
EP3301294B8 (en) * 2016-09-30 2019-12-18 CPT Group GmbH Fuel rail assembly
DE102016012080A1 (de) 2016-10-08 2017-04-27 Daimler Ag Vorrichtung und Verfahren zum Andrehen einer auf einer Medienleitung angeordneten Überwurfmutter
GB2584473B (en) * 2019-06-05 2022-03-02 Delphi Tech Ip Ltd Fuel rail assembly
FI131473B1 (en) * 2023-03-17 2025-05-09 Thermal Channel Tech Oy Construction kit for forming a heat pipe

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007033738A2 (de) 2005-09-16 2007-03-29 Daimler Ag Kraftstoffverteiler
DE102008013575B3 (de) * 2008-03-11 2009-08-13 Poppe & Potthoff Gmbh Kraftstoffverteilerbaugruppe
US8419073B2 (en) 2008-03-11 2013-04-16 Poppe & Potthoff Gmbh Fuel distributor assembly
DE102009051065B3 (de) * 2009-10-28 2011-01-20 Benteler Automobiltechnik Gmbh Kraftstoffverteiler
EP2317118A2 (de) 2009-10-28 2011-05-04 Benteler Automobiltechnik GmbH Kraftstoffverteiler

Also Published As

Publication number Publication date
DE59705182C5 (de) 2006-06-22
DE59705182D1 (de) 2001-12-06
JPH10259772A (ja) 1998-09-29
ATE208009T1 (de) 2001-11-15
DE19744762A1 (de) 1998-10-01
EP0866221A1 (de) 1998-09-23

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